John Duncsak
John Duncsak at Jim Curley GMC Lakewood

John Duncsak

Sales Manager

Jim Curley GMC Lakewood

1399 River Avenue
Lakewood, NJ 08701

Contact Me
5.0
97 Reviews

I refer to myself as Big John. I went to Cal State Fullerton and started in the automotive industry in 1987. I began working at Jim Curley GMC IN 2022. I truly love the car business and consider my co-workers my friends. They are the heart of the dealership. I am originally from Linden, N.J. and have lived in Toms Rivers since 1997 .I lived in California for 6 1/2 years, and my first real job was at Disneyland. That is where I learned that customers always come first. I've been married to my wife Barbara since 1992 and have twins Nick and Kaitlyn. Both college grads and both graduated got their masters in education and business analytics. . I'm proud to say that my wife and my kids are everything to me . My success is their success . It feels great to be with the Curley family . Now 2 great locations! Jim Curley Buick GMC of Lakewood, NJ Jim Curley GMC of Keyport , NJ

Dealership Experience

3 yrs, 9 mos

Industry Experience

39 yrs, 4 mos

Languages Spoken

English English

5.0

97 Reviews

Write a Review

97 Reviews of John Duncsak

May 16, 2026

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Employee Rating

Great job. Good car buying experience. The way buying a car should be. I would highly recommend. More

by child_bill
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Purchase Time
Finance Experience
Recommend Dealer
Yes
May 16, 2026

Jim Curley GMC Lakewood responded

Thank you for your kind words about purchasing your new GMC. We’re pleased to hear the process felt just as it should and appreciate your recommendation. Chris is here if you have any questions or need assistance with your GMC in the future.

May 12, 2026

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Awesome experience with the Jim Curley GMC team! From scheduling to final paperwork, the process was easy and quick! More

by Roberta Soares
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Purchase Time
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Recommend Dealer
Yes

Other Employees Tagged: Dante Pizzi

May 12, 2026

Jim Curley GMC Lakewood responded

We appreciate your kind words and are glad that scheduling and paperwork went smoothly. Our team is always ready to help with any future needs. Thanks for sharing your experience!

May 12, 2026

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Dante & the whole team at Jim Curley GMC were great to deal with. Straight to the point, easy to deal with, and make you feel at home. I highly recommend them! More

by Gaetano Di Pisa
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Dante Pizzi

May 12, 2026

Jim Curley GMC Lakewood responded

Thank you for recommending Dante and the team. We’re glad they made purchasing your used BMW X5 straightforward and welcoming. Feel free to reach out if we can help again.

April 14, 2026

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Dealership was great & I had a very pleasant experience. Everyone was so friendly & went above & beyond to help me. Definitely would recommend to anyone looking for a GMC. And if you do go to Jim Curly More

by Kateb404
Sales Price Transparency
Trade-in Experience
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Recommend Dealer
Yes

Other Employees Tagged: Frank Mazza

April 04, 2026

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Everyone was excellent and so helpful! Lauren set up our test drive and stopped by to meet us. Jack was just wonderful, he was so knowledgeable and walked us through the whole process. Joh More

by francabro511
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Recommend Dealer
Yes

Other Employees Tagged: Jack Merwede

April 02, 2026

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Cynthia was so helpful in helping us to choose a new car for our growing family! We love our new ride and had a great experience. More

by shannon.mehra
Sales Price Transparency
Purchase Time
Recommend Dealer
Yes

Other Employees Tagged: Cynthia Rothschild

March 30, 2026

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I recently purchased a vehicle here and I have to tell you the experience was great! Dante Pizzi was an awesome. He took the time to explain every detail and answered all of my questions. John was also a More

by Llamothe06
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Recommend Dealer
Yes

Other Employees Tagged: Dante Pizzi

March 24, 2026

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Employee Rating

Cynthia and her team were absolutely best, kind, knowledgeable and easy to deal with. Thank you for all your help to get the my first business car signed up, let’s hope there’s more to come. Thank y More

by Tuuli
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Recommend Dealer
Yes

Other Employees Tagged: Cynthia Rothschild

March 07, 2026

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Purchasing a new vehicle at Jim Curley GMC was one of the most pleasant experiences we have ever had. Our salesman, Carlos Martinez, was amazing and we highly recommend that anyone visiting the dealership More

by Marc O
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Recommend Dealer
Yes

Other Employees Tagged: Carlos Martinez , Damen Krone, Nicole Lara, Lauren Rivas

March 02, 2026

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Employee Rating

Second vehicle leased from Cynthia. Friendly and great experience. Everyone we met knows the vehicles and options they come with. Assistance in setting up the vehicle is outstanding More

by sdelsontro2
Finance Experience
Recommend Dealer
Yes
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